c. 500               Major burning evident at Rome

500-475           Sharp drop in imported pottery

c. 480               Temple construction ceases for decades

c. 450               Writing of the Twelve Tablets

c. 370               Construction of the Servian Wall

c. 312                Construction of the Appian Way and the Appian Aqueduct; first Roman coinage appears

c. 280               Scipio Barbatus' tombstone set up

c. 270               Rome now one of the largest cities in the Mediterranean, with a population of between 60,000 and 90,000